Emma said "This cake was actually made as a freebie for my Dad, Keith, who had worked for London Underground for over 40 years and who has recently retired. The cake was a surprise for him, and obviously it couldn't have been anything else but a Tube train! I even researched (as much as I could) the front design of the District line trains to make it accurate for him."
I bet he loved it! Thanks to Emma for letting me share the pictures and story with you.